I'm curious when the effects of wrinkle Botox start to appear.

Lately, whenever I take photos, the wrinkles on my forehead and between my eyebrows seem more visible than before, so I am looking into wrinkle Botox treatments. They aren't very noticeable normally, but they deepen when I smile or frown, and even when I relax, marks seem to linger briefly. I felt that I wanted to get it managed before it gets worse.

I am curious whether wrinkles smooth out immediately after receiving Botox, or if it takes a few days for the effects to appear. In particular, for areas that use facial expressions frequently, such as the forehead and between the eyebrows, I would like to know if it is possible to alleviate wrinkles while allowing for natural movement. I am also worried that I might receive too much, causing my facial expressions to look unnatural or my forehead to look heavy.

I am also curious about how long the effects of wrinkle Botox last after a single treatment, and whether I should receive a re-treatment if wrinkles start to reappear. I would also like to consult on whether the duration of the effects may differ from the initial treatment if I receive treatments consistently.